How a lunar eclipse works, why the moon turns red during a total one, and how it differs from a solar eclipse.
Why a bright moon ruins the night sky, and the best phases for seeing stars, the Milky Way, and meteors.
What waxing and waning mean, and a simple trick to tell at a glance if the moon is growing or shrinking.
A simple explanation of how the moon's gravity pulls the oceans and creates high and low tides.
What a blue moon actually means, where the phrase comes from, and whether the moon ever looks blue.
What a supermoon is, why it looks a little bigger and brighter, and when to catch one.
The moon illusion explained: why a low moon looks huge, and how to prove it is the same size.
What research actually says about the full moon and sleep, and what is just a myth.
What a new moon is, why it is nearly invisible, and what it is good for.
Where names like Wolf Moon, Harvest Moon, and Blood Moon come from, and what each one means.
What a full moon actually is, why it looks huge near the horizon, and how often one happens.
A plain-English guide to the 8 phases of the moon, what waxing and waning mean, and how long the full cycle takes.
A quick guide to moontrack, the free moon phase app. See tonight's moon, browse the calendar, add dates and notes, and track your day.